Improvement in wind-wheels



dnitrd gisten @anni djiyiiw.

Letters Patent No. 90,385, dated Ma/y 25, 1869.-

IMPROVEMENT IN WIND-WHEELS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, WALTER Pneu, of Rockford, in the county of Winnebago, and State of Illinois, have invented new and useful Improvements in Windmills; and I do hereby declare that the following Yis a full and enact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

This invention relates to certain novel devices for regulating the speed of windmills; and consists, principally, in the use ofa small supplementary fan, which is so arranged, that when acted' upon with unusual force, its consequent movement causes the blades of the mill to be properly adjusted to meet the increased blow.

In order that those skilled in the art to which my invention appertains, may be able to make and use the same, I will proceed to describe its construction and operation. Y

In the drawings, which make part of this specifica- .tion- Figure l represents a side elevation, and

Figure 2, a front view of my improvement, as applied to a mill.

The same letters refer to identical parts in` all the figures.`

This invention is particularly designed f'or use upon my improved windmill, which is covered by Letters Patent, dated August l, 1868, although it may, perhaps, be adapted to other mills of somewhat similar construction.

A represents the standard upon which the mill 'is supported.

B, the guide-fan.

C, the weighted lever operating the rod D, which latter clutches the sliding sleeve d, by means of which the fans E E of the mill are opened or closed, as oircumstances may require.

These parts are all fully described in the patent above alluded to, and do not require special mention here.

F represents a cross-beam, securely attached to the double beams b b of the guide-fan.

From this beamrises the standard G, which latter is made somewhat tapering in form, and is provided with a shoulder, g, whichJ'orins a bearing-surface for the socket h of the small fan H. llhis socket swings freely upon standard G, and may be constructed in any suitable manner. In the drawings, it has two bearing-surfaces, the upper of which also acts as brace, to give increased strength and stiiness to the connection.

I represents a chain or rope, one end of which is attached to the inner and fixed end of the fan H, and the other to the forward end ofthe weighted lever G, as shown.

K represents a grooved roller, which serves to keep chain I in proper position, and also to diminish the friction.

L represents a stop, which limits the forward motion of the fan, and against which it rests when the wind is light, the standard G being inclined from the perpendicular snciently far to cause it naturally to swing against the stop.

The operation of my improvement will be easily understood.

i .So long as the wind is light, the fan H will remain in `its natural position, that is, at right angles to the line of' the wind, but as soon as the wind blows strongly, it is forced'froin its position, and swings more or less into line with the guide-fan. By this movement, through the medium of chain I, the forward end of lever O is elevated, and the fans of the mill are consequentlyso operated as to expose a less surface to the wind.

It will thus be seen that aV simple and reliable gov? ernor is produced, by which the speed of the mill is automatically' regulated.

It may easily be adjusted to move more or less readily, by changing the size of the supplemental fan, and by altering the length of its beam. Adjustment is also permitted by means of the chain, which may be shortcned or lengthened, as may be necessary.

Having thus fully described my inventi0n, lThat I claim as new, and desire to secure by Letters Patent of the United States, is-

rllhe fan H, standardG, stop L, chain l, roller K, and weighted lever O, with its connections, when combined and arranged as and for the purpose described.

This specification signed and witnessed, this 18th day of September, 1868.

Witnesses: WALTER PEOK.

G. W. FORD, A. PENNOYEB. 

